So being the crown prince (I think?) Or not (I doubt), whoever fucked with him was literally thinking of FUCKING HIM! Like, he is from the imperial family, he knows he can impregnate men too and still he did it in an way that Loui would definitely get pregnant...asshole!!!
that aside I think he can't remember well because he is supposed to be one of the victims, so the serial killer put something on his drink but instead of falling in the assasins claws he got entangled with the prince